Improvement in edge-planes



UNITED STATES PATENT EEIoE.A

WILLARD OSBORNE, OF LAKEVILLE, MASSACHUSETTS.

IMPROVEMENT IN EDGE-PLANES.

Specification forming part of Letters Patent No. 172,048, dated January 11, 1876; application led December 16, 1815.

To all whom it may concern:

Be it known that I, WILLARD OsBoRNE, of Lakeville, of' the county of Plymouth, of the State of Massachusetts, haveinvented a new and ust'ul Improvement in Shoe Sole Edge-Planes; and do hereby declare the same to be fully described in the following speeification and represented in the accompanying drawings, of which- Figure 1 is an end view, Fig. 2 a side elevation, Fig. 3 a rear view, and Fig. 4 a front elevation, of an edge-plane of my improved kind. Fig. 5 is avertical section taken through the clamp-screw and jaws ot' its cutter. Fig. 6 is an edge view ot' the said cutter.

rThis implement diers from others Aot' the kind in having its curved cutter provided with a tongue dovetailed in transverse section, and also in having the cutter supporter or stock provided with dovetailed jaws, a recessed standard, and a clan1p-screw to co-operate with the said tongue in holding the cutter to the stock, and admit of its being adjusted nearer to or farther from the adjustable throat-piece, as occasion may require. The devices for supporting the adjustable cutter not only accomplish this to great advantage, but facilitate the escape of the shavings on either of the opposite sides of the jaw carrier or standard.

In the drawings, A denotes the plane-stock, fixed to a handle, B, and provided with a stationary standard, G, and an adjustable throatpiece, D. The latter, formed as shown, is slotted, as represented at a, to receive two clamp screws, b b, that go through the slot, Iand screw into the end of the stock. By such means the throat-piece can be adjusted in a direction parallel to the axis of the handle. The movable cutter (shown at E) is provided on its inner surface with a tongue, c, dovetailed in transverse section, such tongue being grasped by two jaws, d d, duly recessed, as shown at e e, to receive it. These jaws make parts of the standard G, which is slit vertically, as shown at f. Furthermore, a clamp-screw, g, goes through one of the said jaws, and screws into the other, the first of the said jaws being countersunk to receive the head of the screw. Above the screw the standard C is grooved or channeled, or has throats on both opposite sides, as shown at h h, the two throats meeting at the front edge of the standard. They are not only to give to the jaws the requisite flexibility or elasticity, but to facilitate the escape ot' the chips or shavings, and prevent them from curling up in the main throat t, so as to impede the operation of the tool while in use.

I am aware that the knife ot' a shoe-sole cutter has been held to its supporter by a single clamp-screw screwed into the knife, and through a slot in the bed on which such knife was supported, in which case the friction of the screw'head had to be depended on to prevent the knife from slipping or getting out of adjustment. A

With the jaws, clamp-screw, and dovetailed tongue the knife is far better supported, and less liable to derangement while in operation.

I claim- 1. In the sole-edge plane, the curved knife or cutter E, as provided with the dovetailed tongue c, in combination with the stock A, provided with the jaws d d and clamp-screw g, to support and hold such tongue' and cutter, as specited.

2. The standard C, as provided with the jaws cl d and clamp-screw, and with the two lateral throats h, h arranged therewith, and to meet at the front of the standard, all being substantially as specified.

WILLARD OSBORN E. Witnesses R. H. EDDY, J. R. SNOW. 

